Power languages and density

Valtteri Niemi. Power languages and density. Discrete Applied Mathematics, 32(2):183-193, 1991. [doi]

@article{Niemi91:0,
  title = {Power languages and density},
  author = {Valtteri Niemi},
  year = {1991},
  doi = {10.1016/0166-218X(91)90099-I},
  url = {http://dx.doi.org/10.1016/0166-218X(91)90099-I},
  researchr = {https://researchr.org/publication/Niemi91%3A0},
  cites = {0},
  citedby = {0},
  journal = {Discrete Applied Mathematics},
  volume = {32},
  number = {2},
  pages = {183-193},
}